日经平均股指冲高回落，一度站上5.8万点

Group 1 - The Nikkei average index rose over 300 points on February 12, reaching the 58,000 point range for the first time, driven by strong U.S. economic performance and robust Japanese corporate earnings [2][4] - Following the House of Representatives election, the rapid rise in the Nikkei index began to show signs of fatigue, with some heavyweight stocks facing sell-offs due to high-level caution among investors [2][4] - The Nikkei average closed at 57,639.84, down 10.70 points (0.02%) from the previous trading day, with significant sell-offs in Advantest and Tokyo Electron, which together lowered the Nikkei average by approximately 250 points [4] Group 2 - The Nikkei index had previously been in the 54,000 point range before the ruling party's victory in the House of Representatives election, which led to a breakthrough above the 55,000 point mark and a peak above 58,000 points on February 12 [4] - The technical analysis indicated that the price deviation from the 25-day moving average exceeded 7%, surpassing the "overbought" threshold of 5%, suggesting that stocks with significant short-term gains are more susceptible to profit-taking [4] - Investor interest in AI-related stocks remains strong, with the Philadelphia Semiconductor Index (SOX) rising over 2% in the U.S. market, driven by the continued rise of major tech stocks, leading to improved market expectations for investment returns [4]